A 5.00g sample of potassium chloride (molar mass is 74.55 g/mol ) was added to 50.0g of water initially at 20.0°C. The mixture was stirred and as the potassium chloride dissolved, the temperature of the solution decreased. The temperature of the water decreased to 146 °C.
Calculate a value in kJ/mol. for the enthalpy of solution of potassium chloride.
You should assume that only the 50.0g of water changes in temperature and that the specifte het capacity of water is 4.19 J/K*g​

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The rules of engagement (roe) working group is often used to (select all that apply.)

Nconcentration refers to the molar concentration of an ion in solution. it may be identical to, or greater or less than, the molar concentration of the compound containing the ion that was used to make the solution. for soluble salts, the molarity of a particular ion is equal to the molarity of that compound times the subscript for that ion. for example, 1 m of alcl3 is 1 m in al3+ and 3 m in cl−. 1 m of (nh4)2so4 is 2 m in nh4+ and 1 m in so42−. part a what is the concentration of k+ in 0.15 m of k2s? view available hint(s) nothing m m part b if cacl2 is dissolved in water, what can be said about the concentration of the ca2+ ion? view available hint(s) if is dissolved in water, what can be said about the concentration of the ion? it has the same concentration as the cl− ion. its concentration is half that of the cl− ion. its concentration is twice that of the cl− ion. its concentration is one-third that of the cl− ion. part c a scientist wants to make a solution of tribasic sodium phosphate, na3po4, for a laboratory experiment. how many grams of na3po4 will be needed to produce 550 ml of a solution that has a concentration of na+ ions of 0.700 m ? express your answer numerically in grams. view available hint(s) mass of na3po4 n a 3 p o 4 = nothing g provide feedback